Transaction processing systems

1. Transaction processing systems Submitted by Aswathy t s

2. Transactions • Transactions… • Basic business operations such as customer orders, purchase orders, receipts, time cards, invoices, and payroll checks in an organization • Transaction processing systems (TPS) • Perform routine operations and serve as a foundation for other systems

3. Batch vs. On-Line Transaction Processing • Two types of TPS: • Batch processing • A system whereby business transactions are accumulated over a period of time and prepared for processing as a single unit or batch • On-line transaction processing (OLTP) • A system whereby each transaction is processed immediately, without the delay of accumulating transactions into a batch

4. Batch Schematic Input (batched) Data entryof accumulatedtransactions Output

5. On-line Schematic Terminal Terminal Terminal Output Immediateprocessingof eachtransaction Terminal Terminal Terminal

6. Objectives of TPS • Process data generated by and about transactions • Maintain a high degree of accuracy • Ensure data and information integrity and accuracy • Produce timely documents and reports • Increase labour efficiency • Help provide increased and enhanced service • Help build and maintain customer loyalty • Achieve competitive advantage

7. Transaction processing cycle • Data collection • Data editing • Data correction • Data manipulation • Data storage • Document production

8. Original data Datacollection Dataedit Datamanipulation Datacorrection Datastorage Documentproduction

9. Control and Management Issues • Business resumption planning • The process of anticipating and providing for disasters. • Disaster recovery • The implementation of the business resumption plan. • Transaction processing system audit • An examination of the TPS in an attempt to answer three basic questions • Does the system meet the business need? • What procedures and controls have been established? • Are the procedures and controls being properly used?